This inflated Starbright Gertie Ball from Small World Toys is so cool because it glows in the dark! This Gertie Ball from Small World Toys is activated by light and glows up to one full hour in the dark. It glows in the dark and is 9 in diameter. This very cool Starbright Gertie Ball with stars that glow comes in green, blue or purple.Ages 3 and up.By Small World Toys